LVO FL10 (01) PDF Document

Overall Dimensions

Width: 31 ¾”

Depth: 47 ¼” (47 ¾” for Gas models)

Height: 82 ¼” (84 ¾” for Gas models)

Height with door open: 103 ¼” (105 ¾” for Gas models)

Door opening: 28 ¼” wide x 30 ¼” high

Hot Water System

A ½” hot water supply is required, with a union provided.

140°F water is required at the machine.

Water consumption is 78 GPH at 20 PSI (6 ½ gal/cycle x 12 cycle/hr).

Rinse booster: (1) 9 kW heating element in an 8 ½ gallon rinse tank OR a ½” steam coil in an 8 ½ gallon rinse tank (Recirculating Steam Only).

Full Load Amps

Model Type	208 Volt	230 Volt	460 Volt
Electric	70.5	64.7	32.3
Gas/Injected Steam	45.5	42.1	21.0
Recirculating Steam	20.5	19.5	9.7

Gas System (Gas Machines Only)

A ½” gas supply is required.

Natural Gas: 7″ W.C. minimum inlet, 3 ½” W.C. main manifold – 36,000 BTU.

Propane: 11″ W.C. minimum inlet, 6” W.C. main manifold – 36,000 BTU.

A 3″ stainless steel chimney is located on the back of the machine.

Steam System (Steam Models Only)

Requires a ¾” steam line at 10-15 PSI.

Average consumption: 18 lbs/hr for Injected models, 36 lbs/hr for Recirculating models.

Wash System

A 7 ½ Hp pump recirculates approximately 130 GPM @ 55 PSI.

Heat Source:

Electric: (1) 9 kW heating element.

Gas: (2) 18,000 BTU rated infrared burners – 36,000 BTU total.

Injected & Recirculating Steam: 10 to 15 PSI, 18 lbs/hr average.

Wash tank capacity is 30 gallons.

It has a 1 ½” copper drain.

It includes a 6″ steam exhaust vent companion flange (Requires PVC, CPVC, or stainless steel field installed duct).

Electrical Data for LVO FL10 – Electric Model

Component	208 Volt	230 Volt	460 Volt
Pump Motor	18.0	17.2	8.6
Control Circuit	1.2	1.1	0.5
Wash Heater (one 9 kW)	25.0	22.6	11.3
Rinse Heater (one 9 kW)	25.0	22.6	11.3
Exhaust Fan	1.33	1.2	0.6
Total Running Current	70.5	64.7	32.3

Electrical Data for LVO FL10 – Gas or Injected Steam Model

Component	208 Volt	230 Volt	460 Volt
Pump Motor	18.0	17.2	8.6
Control Circuit	1.2	1.1	0.5
Rinse Heater (one 9 kW)	25.0	22.6	11.3
Exhaust Fan	1.33	1.2	0.6
Total Running Current	45.5	42.1	21.0

Electrical Data for LVO FL10 – Recirculating Steam Model

Component	208 Volt	230 Volt	460 Volt
Pump Motor	18.0	17.2	8.6
Control Circuit	1.2	1.1	0.5
Exhaust Fan	1.33	1.2	0.6
Total Running Current	20.5	19.5	9.7

Note: Electrical Supply to the machine should exceed these figures by the amount required by local codes. Changing the voltage of the machine in the field requires different heating elements.

1. Service work on the machine should be done by either a factory representative or qualified local service company.

2. Failure to follow the cleaning guidelines described in the manual will damage the machine and will void the warranty.

1. Installation must conform to local codes and the National Fuel Gas Code, ANSI Z223.1. In Canada: Installation must be in accordance with CGA Standard CAN/CGA-B149.1, Natural Gas Installation Code or CAN/CGA-B149.2, Propane Installation Code.

WARNING: DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS OR LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE.

WARNING: IF YOU SMELL GAS, SHUT OFF THE GAS SUPPLY TO THE APPLIANCE, EXTINGUISH ANY OPEN FLAME, AND TEST ALL JOINTS WITH A SOAP SOLUTION. IF ODOR PERSISTS, CALL YOUR GAS SUPPLIER IMMEDIATELY.

2. Instructions should also be posted in a prominent location describing what to do in the event that the smell of gas is detected in the vicinity of the machine.

3. Do not obstruct the flow of ventilation and combustion air to the machine.

4. Gas model pan washers are equipped with an electronic ignition that automatically lights the burners when the power switch is turned to the “ON” position and there is enough water in the machine. To shut the burners off, the power switch should be turned to the “OFF” position.

The LVO FL10 must be operated with an automatic detergent feeder, which is supplied by the customer. This includes a visual means to verify that detergent is delivered or a visual or audible alarm to signal that detergent is not available for delivery. Power for the feeder can be provided by the pump supply connection in the control panel.

WARNING: Not following these instructions may void warranty, cause damage to the equipment and/or cause injury to anyone involved in the installation or operation of this machine.

Step 1 READ: Read and understand these instructions thoroughly before attempting any part of the installation process. EVERYONE involved with the installation must be familiar with all aspects of the installation procedure.

Step 2 POSITIONING: Leave as much room as possible around the machine for future service. Allow no less than 16″ along the sides (36″ for the side with the control box), and no less than 12″ between the rear of the machine and the wall.

Step 3 UNCRATING: Leave the machine fully crated until it is in its final location. After uncrating, remove the banding that holds the door weight stationary on the back of the machine. The fan (if ordered) and legs are inside. Remove the machine from the pallet, install the legs, and level the machine by turning the small end of the legs.

Step 4 DRAIN: The pan washer has a copper drain. The drain should be plumbed according to local code, which may require a grease trap, vent, and/or a floor sink. It is strongly recommended that unions be used to allow the machine to be easily moved.

Step 5 WATER SUPPLY HOOK-UP: Use 140°F hot water. The water line size is on the specifications page. A dedicated water heater may be required. If hard water is present, installing a water softener or calcium filter is recommended to prevent damage and higher maintenance costs. A union is installed at the point of hook-up to allow the machine to be moved. The customer must furnish an easily accessible shut-off valve on the supply side of the union.

Step 6 STEAM VENT: The machine has a collar for 6” duct work. This duct should be directly vented to the outside of the building. DO NOT vent into a wall, attic, or any other concealed space. Avoid horizontal runs of duct. Use 6” plastic pipe or stainless steel duct. If using stainless steel, install with reverse joints so condensate drains back into the machine, and seal all seams with silicone sealant. A 1/3 hp squirrel cage exhaust fan is usually shipped with the machine. Mount and seal this fan with silicone directly into the flange on top of the machine before installing ductwork. The fan runs at two speeds: a lower speed during the wash cycle and a higher speed at the end of each cycle and when the door is open.

Step 7 ELECTRICAL CONNECTIONS: This must be done by a qualified electrician. Ensure supply voltage matches the machine’s rated voltage and that sufficient amperage is supplied. A customer-supplied main power shut-off must be installed near the machine in an accessible place. Use watertight flex conduit for the line from the shut-off to the machine, with a few extra feet to allow the machine to be moved. The supply should run into the back of the machine at the bottom, between the rinse tank and the side, and through the back of the control box. First, connect the main ground to the grounding lug. Then, connect to the main power block. Ensure circuit breakers in the control box are in the “OFF” position before turning on the main switch.

Step 8 GAS CONNECTION (Gas Machines Only): A certified gas technician is required for hook-up and final adjustments. Verify the gas type (natural or LP) matches the gas data plate. The gas line hook-up must be made with a union at the location shown on the drawing. A customer-supplied shut-off valve must be installed near the machine. A draft diverter is included and must be installed on top of the factory installed 3″ stainless steel chimney. The Type B gas flue can then be continued to the outside per local codes.

Step 9 STEAM CONNECTION (Steam Machines Only): A steam line is required to supply the steam injector or recirculated steam heat exchanger coil. A union is required in the supply line (customer-supplied). Refer to the specification sheet for steam line size, rated pressure, and average steam consumption.

NOTICE: These instructions must be followed or damage to the machine will result.

Step 1: Close drain valve.

Step 2: With the circuit breakers in the control panel in the “OFF” position, turn the ON-OFF switch on the button panel to the “ON” position. Wait approximately 5 seconds for the machine controller to power up. The amber power light will not turn on until there is sufficient water in the machine.

Step 3: Fill the machine by pressing the Auto Fill button. The machine will fill for 90 seconds past the point where the low water protection device is energized. The machine will not run without sufficient water in the wash tank. The machine will not operate with the door partially open.

Step 4: Switch all circuit breakers in the control panel to the “ON” position. This will energize the heating system.

Step 5: Check for proper pump rotation. Press the start button and observe the wash pressure gauge for 5-10 seconds, then press stop. The wash pressure should be 45-60 psi. If pressure is erratic and only rises to about 20 psi with a noticeable growl, the pump is running backwards. To fix this, disconnect power to the machine and reverse the outside two wires that feed the power block in the control panel. Reconnect power and test again.

Step 6: Check the heating systems. The rinse tank should take 5-10 minutes to reach 200°F and the wash tank should take 40-45 minutes to reach 160°F. If the machine isn’t heating, ensure all breakers are “ON”. For gas models, ensure the main gas valve is open. During initial start-up, you may need to turn the machine on and off several times to bleed air from the gas lines.

Step 7: Set the rinse pressure using the adjustment valve on top of the machine. The pressure should be 20 psi on the rinse gauge while the machine is rinsing.

Step 8: The machine has an Auto Fill feature controlled by a timer in the electrical panel. Adjust this timer so the machine fills to the overflow tube (or until water just begins to run out of the drain) when the Auto Fill button is pressed.

Step 9: If equipped with the fan option, verify it rotates correctly. If it blows into the machine, switch the two outside wires (T1/U & T3/W) on the motor drive in the control panel. Use the dial on the drive to adjust the fan speed so that excess steam is removed during the wash cycle when the machine is loaded. Do not set the fan speed too high, as this may cause excessive temperature drop.

Step 10: Replace all covers and peel off the plastic protective coating, tape, etc. from the machine.

Power switch is switched “ON”.

Control panel logic control is energized.

Fill button energizes the fill solenoid.

Low water safety switch closes terminals 1 and 4 in the control panel if there is sufficient water in the wash tank.

Amber indicator light comes on.

Wash and rinse temp controls are energized.

Temp controls energize wash and rinse heating systems.

Door safety switch is energized.

Stop and Start buttons are energized.

Start button is pushed energizing the internal timing functions of the logic control.

Red indicator light is energized.

Wash timer (Light, Medium, or Heavy) starts, energizing the pump contactor for a set amount of time.

Wash time runs out, energizing the rest timer.

After a set amount of rest time, the rinse timer starts, energizing the rinse solenoid valve and clear indicator light.

If the machine is equipped with the exhaust fan option, the fan timer runs for the set time when the rinse cycle is completed.

After the rinse timer (or optional fan timer) has timed out, all timers are reset, and the red indicator light is de-energized.

1. Check if the inside of the machine has been properly cleaned since its last use. If not, clean it.

2. Make sure scrap tray screens and pump inlet screens are in place. NOTICE: Do not operate washer without all screens in place.

3. Close the drain valve.

4. Turn the power switch to the “ON” position, allow approximately 5 seconds for the internal logic controller to power up, and push the Auto Fill button to fill the unit.

5. Allow wash and rinse temperatures to come up to recommended levels.

6. While the machine is warming up, prepare the first load. If pans are excessively dirty, pre-soak and scrape them.

7. Once the machine has reached recommended temperatures, add detergent to the wash water according to the chemical supplier’s recommendations. A non-suds detergent is necessary. An automatic soap dispenser should be installed.

8. Place the rack of pans in the machine, centered to subject the pans to the full force of the spray arms. Place the hold-down rack over the pans in the lowest position possible.

NOTICE: When loading the machine make sure that nothing will obstruct the path of the wash arms. This will avoid damage to the machine and to the items being washed.

NOTICE: Loose items and glassware should not be put in the washer. The high pressure wash cycle will damage them and potentially the machine.

The rack of pans should be centered in the machine to subject the pans to the full force of the spray arms. The hold-down rack should be placed over the pans in the lowest position possible. The hold-down rack is not designed for use as a shelf to support heavy objects.

When loading bowls, pans, or buckets, make sure they are loaded in a manner that will allow the wash water to drain out of them.

Bowls or buckets can be washed by placing them upside down on the main support rack with the hold-down rack installed above them in the lowest possible position.

The utensil basket is for smaller items like paddles, whisks, and scrapers. The utensil basket may need to be held in place by the hold-down rack to prevent it from moving.

The machine cycle is completely automatic, controlled by a logic controller with adjustable timers. The factory recommended settings are:

Wash: Light – 3 Min

Wash: Medium – 5 Min

Wash: Heavy – 7 Min

Rest: 20 Sec

Rinse: 60 Sec

Fan (Optional): 30 Sec

To operate the cycle:

1. Select the wash length (Light/Medium/Heavy) with the 3-position selector.

2. Push the green start button. The red indicator light will come on.

3. At the end of the wash cycle, the 20-second rest period begins, allowing water and suds to drain from the pans. The red light stays on.

4. After the rest cycle, the rinse cycle begins, and the clear indicator light will come on.

5. If equipped, the fan will start after the rinse is finished.

6. After the fan cycle (or rinse cycle if no fan), the red light will go off. The cycle is complete.

Throughout the day, the scrap tray screens should be periodically removed, dumped out, washed, and replaced.

1. Check and clean any plugged wash nozzles. Use a piece of wire to push obstructions into the wash arm. When nozzles are clear, close the door and run the machine for a few seconds by pressing the start button to blow debris out of the arms. Push the red “STOP” button. The wash arm assembly can be removed by pulling the grip ring pin and sliding the assembly out of the hub if necessary.

2. Turn the machine off and open the drain valve.

3. Remove the scrap trays, dump them out, and wash them in the sink.

4. Spray down the inside of the machine.

5. Brush off the heating element (electric models) and any other area that doesn’t come clean from spraying. Note: On electric models, brushing the element is very important in prolonging its life.

6. Check and clean the rinse nozzles.

7. Spray down the inside of the machine again.

8. Remove the pump inlet screen and clean it thoroughly in the sink. Note: Be careful not to allow any debris to fall into the pump inlet opening when removing the screen.

9. Replace the pump inlet screen and the scrap tray screens.

10. Close the drain and leave the machine empty of water until its next use.

• Turn off power and drain machine, making sure it drains freely.

• Check machine for general cleanliness. Ensure pump screen and scrap trays are clean and properly in place. Wash heating elements (electric models only) daily. Check for plugged wash and rinse nozzles.

o Check for excessive play in the hub/wash arm assemblies. Hub repair kits are available.

o Close drain valve and fill machine. Run a full wash cycle, checking for proper timer operation.

• Check if Power, Wash, and Rinse lights are working.

• Check if pump pressure during the wash cycle is within the 45-60 psi range.

• Check if rinse pressure is approximately 20 psi. This must be checked during the rinse cycle.

o Make sure steam exhaust fan is working properly.

• Allow the machine to heat up to recommended temperatures, making sure temperature controls are operating properly. Check wash temperature and Rinse Tank temperature. The rinse water temperature gauge is accurate only during the rinse cycle.

o For machines with slide-up doors, inspect door cables and connections for damage or excessive wear. Ensure cable pulleys turn freely and the door switch is adjusted properly.

o Pump motor(s) should be greased occasionally, once or twice yearly under normal use.

Items marked • should be checked daily. Other items should be checked periodically.

Problem	Cause	Cure
Machine won’t run	No power to machine Not enough water Door open	Check building power supply Fill machine until overflowing Close door tightly
Wash pressure too high	Nozzles plugged	Remove debris from nozzles
Wash pressure too low	Pump running backwards Pump screen clogged Excessive suds Missing wash nozzles	See Step 5 in Startup Procedures See Cleaning Instructions Change soap or use less Replace nozzles or wash arm
Wash temperature too low	Thermostat set too low Wash element blown	Adjust wash thermostat* Replace wash heating element
Rinse temperature too low	Thermostat set too low Water supply too cold Rinse element blown	Adjust rinse thermostat* Set building hot water at 140°F Replace rinse heating element
No rinse water	Nozzles plugged Solenoid valve stuck Rinse strainer clogged	See Cleaning Instructions Clean or replace solenoid valve Clean pressure regulator/strainer
Rinse does not shut off	Rinse solenoid stuck open	Clean or replace solenoid valve
Utensils not clean	Wash time too short Water too hard Wash temperature too low Detergent problem Improper stacking of utensils	Use longer wash Install softener Adjust thermostat* Consult chemical supplier See racking instructions

* NOTICE: Do not set rinse thermostat above the boiling point of water. The boiling point of water decreases with increased elevation at approximately 2°F per 1000 ft of elevation.

In addition to the checks for electric models, for low wash temperature on a gas machine:

1. Check temperature control set point.

2. Check switches, fuses, and breakers that control the burners.

3. Check to be sure electrical power and gas supply have not been interrupted to the burners.

4. Check that all shut-off valves in the gas line and main gas valve are in the “OPEN” position.

5. Reset ignition control & try again. To reset control:
a. Turn On-Off switch to “Off” position.
b. Wait one minute, turn switch to “On” position.

6. If the above steps do not light the main burner, call your local gas appliance service technician.

WARNING: DO NOT ATTEMPT TO LIGHT BURNER MANUALLY.

In addition to the checks for electric models, for low wash temperature on a steam machine:

1. Check temperature control set point.

2. Check boiler pressure.

3. Check to be sure electric signal is being sent to the steam solenoid.

4. Verify that the strainer in the steam line is open.

5. Check steam solenoid.

NOTICE: Do not set rinse thermostat above the boiling point of water. The boiling point of water decreases with increased elevation at approximately 2°F per 1000 ft of elevation.

1. First, check if the wash tank is filled with water (water should be visible above the scrap trays). If not, fill the wash tank.

2. If the tank is full, check for incoming 3-phase power at the control panel. If there is no power, correct the incoming power supply problems.

3. If there is power, check for power on the primary side of the transformer. If there is no power, check the primary fuses on the control panel.

4. If there is power on the primary side, check for power on the output side of the secondary transformer fuse. If there is no power, the secondary transformer fuse is blown or the transformer is defective.

5. If there is power on the secondary fuse, verify the low water cut-off is working by checking for power at terminal #4 on the lower terminal block strip. If there is no power, the low water cut-off is defective or damaged.

1. When the start button is pushed, does the wash light illuminate? If not, check if the door is fully closed. If it is closed, check the door switch for proper adjustment and function.

2. If the wash light does illuminate, check if the pump circuit breaker is tripped in the control panel. If yes, reset the circuit breaker.

3. If the breaker is not tripped, check if the overload relay is tripped on the motor start for the pump. If yes, push the reset button.

Pans are to be inserted facing each other as shown in the diagram. If necessary for extremely soiled pans, place a pan in every other slot.

Insert pans as shown so the bottom wash arms spray inside of the pans. If necessary for extremely soiled pans, place pans in every other row.

The hold-down rack has three positions: upper, middle, and lower. NOTE: This hold-down rack is not to be used as a shelf to support heavy items.